Asus Zenfone 3 Ultra ZU680KL vs Celkon Q500 Millennium Ultra

Asus Zenfone 3 Ultra ZU680KL

Celkon Q500 Millennium Ultra

Network
2G network

GSM 850, 900, 1800, 1900

GSM 900, 1800
3G network

HSDPA 800, 850, 900, 1900, 2100

HSDPA 2100
4G network

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800), 19(800), 20(800), 26(850), 28(700), 38(2600), 40(2300), 41(2500)

-
HSDPA speed

42.2 Mbps

HSDPA
HSUPA speed

5.76 Mbps

-
LTE speed

LTE, Cat6, 300 Mbps download, 50 Mbps upload

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Main camera
Main camera

23 MP, f/2.0

8 MP
Primary camera resolution

-

3264 x 2448 pixels
Primary camera video

1080p@30fps

video
Primary camera Autofocus

-

autofocus
Primary camera flash

dual-LED (dual tone) flash

LED flash
Primary camera optical image stabilization

4-axis optical image stabilization

-
Primary camera phase detection autofocus

phase detection autofocus

-
Primary camera laser autofocus

laser autofocus

-
Camera features

1 µm pixel size, 1/2.6" sensor size, HDR, face detection, geo-tagging, panorama, touch focus

-

Sound
3.5mm jack

Yes

Yes
Loudspeaker

Yes, dual speakers

Yes
Notifications

Vibration; MP3, WAV ringtones

Vibration, Polyphonic, MP3 ringtones

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac

Wi-Fi 802.11b, 802.11g, 802.11n
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

-
USB

Type-C 1.0 reversible connector

microUSB 2.0
USB On-The-Go

Yes

-
Bluetooth

v4.2

v4.0
Bluetooth A2DP

Yes

-
bluetooth LE

Yes

-
Bluetooth EDR

Yes

-
Infrared

Yes

-
GPS

Yes, with A-GPS

Yes
GLONASS

Yes

-
BDS

Yes

-